void setup() { // set up the LCD's number of columns and rows: lcd.begin(16, 2); // Print a message to the LCD. lcd.print("hello, world!");}

void loop() { // set the cursor to column 0, line 1 // (note: line 1 is the second row, since counting begins with 0): lcd.setCursor(0, 1); // print the number of seconds since reset: lcd.print(millis()/1000);}

Instead of "Hello, world" it prints different characters on the screen.For instance, instead of the two "o" characters in "hellO" and "wOrld" it prints twice the character "ö".